VIRO: FE RETRO-PNEUMO

Question 1

What enzyme transcribes viral RNA into double-stranded DNA in Retroviridae?

Answer 1

Reverse transcriptase

Question 2

It is the enzyme responsible for integrating viral DNA into the host genome.

Answer 2

Integrase

Question 3

The term ‘Retro’ in Retroviridae refers to what process?

Answer 3

Reverse transcription

Question 4

These retroviruses are capable of horizontal transmission.

Answer 4

Exogenous retroviruses

Question 5

These retroviruses are remnants of ancient infections integrated into host DNA.

Answer 5

Endogenous retroviruses

Question 6

What does the gag gene encode?

Answer 6

Major structural nonglycosylated polyproteins

Question 7

The pol gene in retroviruses encodes what proteins?

Answer 7

Reverse transcriptase and integrase enzyme

Question 8

It is the genus of retroviruses that induce neoplastic transformation in cells.

Answer 8

Oncogenic retroviruses

Question 9

This retrovirus genus causes lifelong infections with long incubation periods.

Answer 9

Lentivirus

Question 10

What is the primary mode of transmission for Feline Immunodeficiency Virus (FIV)?

Answer 10

Bites (through saliva)

Question 11

These are the four clinical phases of FIV infection.

Answer 11

Acute, prolonged asymptomatic, vague clinical signs, terminal phase

Question 12

This test is used for diagnosing Equine Infectious Anemia.

Answer 12

AGID test (Coggins test)

Question 13

The primary cells targeted by Maedi/Visna virus.

Answer 13

Monocytes

Question 14

It is the primary source of Small Ruminant Lentivirus transmission.

Answer 14

Milk from infected animals

Question 15

What are the main genera of Birnaviridae?

Answer 15

Avibirnavirus, Aquabirnavirus, Blosnavirus, Entomobirnavirus

Question 16

What is the common name for Infectious Bursal Disease?

Answer 16

Gumboro Disease

Question 17

The main target cells of Infectious Bursal Disease Virus (IBDV).

Answer 17

B lymphocytes in the bursa of Fabricius

Question 18

The primary route of transmission for IBDV.

Answer 18

Oral route

Question 19

What is the key feature of the nucleocapsid in Paramyxoviridae?

Answer 19

Helical symmetry with herring-bone appearance

Question 20

The genus of Paramyxoviridae that causes Newcastle Disease.

Answer 20

Avulavirus

Question 21

This strain of Newcastle Disease Virus is the most pathogenic.

Answer 21

Velogenic

Question 22

It is the causative agent of ‘Sheep and Goat Plague’.

Answer 22

Peste des Petits Ruminants (PPR)

Question 23

The viral genus responsible for Canine Distemper.

Answer 23

Morbillivirus

Question 24

What viral genus includes the pathogen for ‘Blue Eye Disease’ in pigs?

Answer 24

Rubulavirus

Question 25

These viruses use G protein for cell attachment instead of hemagglutinin and neuraminidase.

Answer 25

Pneumoviridae

Question 26

This virus causes Swollen Head Syndrome in chickens.

Answer 26

Avian Metapneumovirus (Type A & B)

Question 27

What is the primary replication site for Paramyxoviridae?

Answer 27

Cytoplasm

Question 28

These cellular structures are formed due to Paramyxovirus infection.

Answer 28

Syncytia and intracytoplasmic inclusions

Question 29

The natural reservoir for Henipaviruses.

Answer 29

Pteropus sp. (Fruit bats)

Question 30

This Henipavirus causes severe respiratory disease in horses.

Answer 30

Hendra Virus

Question 31

It is the amplifying host for Nipah Virus.

Answer 31

Pigs

Question 32

What are the three strains of Newcastle Disease Virus?

Answer 32

Velogenic, Mesogenic, Lentogenic

Question 33

This genus includes Bovine Parainfluenza Virus 3, associated with 'shipping fever'.

Answer 33

Respirovirus

Question 34

What virus in Paramyxoviridae causes mumps?

Answer 34

Rubulavirus

Question 35

This virus in Pneumoviridae is a major cause of respiratory disease in cattle.

Answer 35

Bovine Respiratory Syncytial Virus

Question 36

What genus does Turkey Rhinotracheitis virus belong to?

Answer 36

Metapneumovirus

Question 37

The primary vector of Equine Infectious Anemia.

Answer 37

Haematophagous insects (e.g., Tabanus spp., Stomoxys spp.)

Question 38

This term describes the presence of multiple petechiae in visceral organs of fish with Infectious Pancreatic Necrosis.

Answer 38

Ropey mucus

Question 39

What type of genome do Birnaviridae viruses have?

Answer 39

Double-stranded RNA (dsRNA)

Question 40

This retrovirus genus is known for causing immunodeficiency diseases in animals.

Answer 40

Lentivirus

Question 41

What is the most prominent lesion caused by Infectious Bursal Disease?

Answer 41

Cloacal bursa (bursa of Fabricius)

Question 42

This type of retrovirus has a high mutation rate due to errors in reverse transcription.

Answer 42

Retroviridae

Question 43

What serological test is commonly used to diagnose Feline Immunodeficiency Virus?

Answer 43

ELISA

Question 44

This virus is implicated in chronic stomatitis and gingivitis in cats.

Answer 44

Feline Immunodeficiency Virus (FIV)

Question 45

The primary cells targeted by Equine Infectious Anemia Virus.

Answer 45

Macrophages, monocytes, Kupffer cells

Question 46

This term describes an ancient retroviral infection where viral DNA is integrated into the host genome.

Answer 46

Endogenous retrovirus